DEFINITION - Voltage above 110% of rated RMS voltage range of usable voltage) for one or more cycles.
CAUSE - Heavy electrical equipment being turned off.
EFFECT - Memory loss, data errors, flickering lights, equipment shutoff.
DEFINITION - Rapid voltage peak up to 6,000 volts with a duration of 100mS (mS= 1,000th of a second ) to 1/2 cycle.
CAUSE - Lightning strikes, Switching operations, arcing faults, static discharge.
EFFECT - Memory loss, data errors, data loss, component stress, burned circuit boards.
DEFINITION - Rapid voltage peak up to 20,000 volts with a duration of 10mS to 100mS.
CAUSE - Lightning strikes, switching operations, arcing faults, static discharge.
EFFECT - Memory loss, data errors, data loss, component stress, burned circuit boards.
DEFINITION - Voltage below 80% to 85% of rated RMS voltage for one or more cycles.
CAUSE - Heavy equipment being turned on, starting large electrical motors, switching power mains (internal or utility).
EFFECT - Memory loss, data errors, flickering lights, equipment shutoff.
DEFINITION - A change in frequency of more than 3 Hz.
CAUSE - Erratic operation of emergency power generators, unstable frequency power sources.
EFFECT - Data errors, data loss, keyboard lockup, storage loss, system lockup.
DEFINITION - A steady state of RMS voltage under nominal by a relatively constant percentage.
CAUSE - Heavy equipment being turned on, starting large electrical motors, switching power mains (internal and utility), over-loaded circuits.
EFFECT - Disk crash, keyboard lockup, program failures, data corruption. Premature hardware failure, data loss and corruption.
DEFINITION - A zero-voltage condition lasting for more than two cycles.
CAUSE - Circuit breaker tripped, power distribution failure, utility power failure.
EFFECT - File corruption, hardware damage, data loss and corruption.
DEFINITION - Someone prone to leaving their brain at home for the day
CAUSE - Incorrect operation of equipment and UPS / Power products
EFFECT - Usually brings on heart failure in company accountants.
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